189214380 has 72 divisors (see below), whose sum is σ = 595222992. Its totient is φ = 50455872.

The previous prime is 189214373. The next prime is 189214391. The reversal of 189214380 is 83412981.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14607 + ... + 24326.

It is an arithmetic number, because the mean of its divisors is an integer number (8266986).

Almost surely, 2^189214380 is an apocalyptic number.

189214380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189214380 is an abundant number, since it is smaller than the sum of its proper divisors (406008612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189214380 is a wasteful number, since it uses less digits than its factorization.

189214380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38957 (or 38943 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 189214380 is about 13755.5218003535. The cubic root of 189214380 is about 574.0962538952.

The spelling of 189214380 in words is "one hundred eighty-nine million, two hundred fourteen thousand, three hundred eighty".